1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca88e1bfc91360fcf8199adb00aaeeb5b7e31cd6a77cd0b2ef8a609930264584. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/846aa2a3-3159-47ba-934a-46d1e1af75a3.json and https://artists.proofprofile.net/proofs/artist/846aa2a3-3159-47ba-934a-46d1e1af75a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706fd3fe902943c65c38f50838540023cc9c8191602e5353c3ed62bf204b6d7b. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TR0361600037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9fb223a120fde2917d2fb94cb820496a9a60defb292387fed68569225788bb6. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TR0361600038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe162cc97f2fadaed5e943177eab82ffc01b434a19e40a329ee4d1050bf400f1f. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:05:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TR0361600035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f089a033d5a277278feffa893d259ae37ab79964a3c3c2aee7776342ceb876f. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:27:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59R1983138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d6169649d9a7f07b16116b6b621ea15d8e17ed658d8743bbdd569b69d3d8a7. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T05:00:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR96X1988210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8a50ca57651145a8a9ff4960e2ca13518e56d9cc983a8012f2b6fbf4eccfd7. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2X42046309.
Deli Gibi Yüreğime Zorsun (feat. Bilal Hancı)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a98c95c85e8756148a94ff9d1a5e948ede2720349f5da4f1eda07cc70c344d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TRZ351900565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96961618f51f224d22fbeef92b523e90c2574f9b7a2d7955a7f0e129b3b2b6b9. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TRBYR2300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39be14f0cf67f3ac49d5fd45c6b7232a7d180ac1937dc89e4aa2dd241e1da050. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJX2315002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f1f08fbbf4e6bce993b01c85df4bd105025729494ffba6cafa733161898243. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJY2385525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x502bdcfc1fe94f71d6ae6a77c8e1a8e6e8cb9f4aeb100b1a072cb3d592843174. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:46:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2334807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1547c98cd1bf75ff952cac24b9d5c11498c22454c9c0a1816aeb144f8f14293. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:55:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9L2323385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756a2c19b09f7e0ff83e0376602c8b16fd3fd25c8c257dc5794774dda4a75ac6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMZ92434959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc16e43aa88b9983038b713f06507941cf1a58029ebf7f2b4f4eb27a492938d44. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJX2444447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdfb4d014db220bf5704cc27f53299ff574b866e6092288f9950bd522edf6785. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2417039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd3afd0e4ba5a680bab9fa78b036fb65731942f7e1e69d6e93d700e8b263c6d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9L2426963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7374f67e9bf98285484464637aea148a6163381d8b1d6200f5ebde98d128b318. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TR0361700246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0676aa6c8008f792c2100f504736458cb39e2d56a8cf7ad85df815b01cbcddad. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2424599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f55efe23011a78e58328ec782dabfbbbaea610c0f56ffcd7cc35e2ec251b1a9. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TR0361900064.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch